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NL78136C - Electro-acoustic device - Google Patents

Electro-acoustic device

Info

Publication number
NL78136C
NL78136C NL144244A NL144244A NL78136C NL 78136 C NL78136 C NL 78136C NL 144244 A NL144244 A NL 144244A NL 144244 A NL144244 A NL 144244A NL 78136 C NL78136 C NL 78136C
Authority
NL
Netherlands
Prior art keywords
electro
acoustic device
twowinding
dreyfus
windings
Prior art date
Application number
NL144244A
Other languages
Dutch (nl)
Original Assignee
Dreyfus Jean Albert
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Dreyfus Jean Albert filed Critical Dreyfus Jean Albert
Application granted granted Critical
Publication of NL78136C publication Critical patent/NL78136C/en

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01H—MEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC, SONIC OR INFRASONIC WAVES
    • G01H3/00—Measuring characteristics of vibrations by using a detector in a fluid
    • G01H3/04—Frequency
    • G01H3/08—Analysing frequencies present in complex vibrations, e.g. comparing harmonics present
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
    • G10L15/00—Speech recognition

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Computational Linguistics (AREA)
  • Health & Medical Sciences (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Human Computer Interaction (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Reciprocating, Oscillating Or Vibrating Motors (AREA)
  • Apparatuses For Generation Of Mechanical Vibrations (AREA)
  • Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)

Abstract

663,380. Electromagnetic relays. DREYFUS, J. A. Jan. 26, 1949. No. 2206/49. Class 38 (v). [Also in Group XXXVIII] An electro-magnetic differential relay comprises a twowinding coil 8 suspended in the air gap of a permanent magnet 9 by a system of blade springs 10. Thus, depending on the relative strength of the currents in the windings 8, contacts 11, 12 or 13, 14 will be closed.
NL144244A 1948-01-08 1949-01-08 Electro-acoustic device NL78136C (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH976368X 1948-01-08

Publications (1)

Publication Number Publication Date
NL78136C true NL78136C (en) 1955-01-15

Family

ID=4551199

Family Applications (1)

Application Number Title Priority Date Filing Date
NL144244A NL78136C (en) 1948-01-08 1949-01-08 Electro-acoustic device

Country Status (5)

Country Link
BE (1) BE486700A (en)
DE (1) DE937019C (en)
FR (1) FR976368A (en)
GB (1) GB663380A (en)
NL (1) NL78136C (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1122274B (en) * 1958-07-10 1962-01-18 Standard Elektrik Lorenz Ag Method and arrangement for the automatic recognition of speech

Also Published As

Publication number Publication date
FR976368A (en) 1951-03-16
GB663380A (en) 1951-12-19
BE486700A (en) 1949-01-31
DE937019C (en) 1955-12-29

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